Koalas live in southeastern and eastern Australia — in the states of Queensland, new South Wales, South Australia and Victoria — in the eucalyptus forests and woodlands. They live in eucalyptus trees and spend most of their time wedged between forks in the tree's branches
I took the quiz and B, with the colon, was the correct choice. The use of a colon presents a more formal way of addressing the topic, the transfer fro mone sentence to another.